115331121152 has 120 divisors (see below), whose sum is σ = 261480660000. Its totient is φ = 50426413056.

The previous prime is 115331121131. The next prime is 115331121163. The reversal of 115331121152 is 251121133511.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4032599 + ... + 4061097.

It is an arithmetic number, because the mean of its divisors is an integer number (2179005500).

Almost surely, 2^115331121152 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 115331121152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (130740330000).

115331121152 is an abundant number, since it is smaller than the sum of its proper divisors (146149538848).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

115331121152 is an equidigital number, since it uses as much as digits as its factorization.

115331121152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28559 (or 28533 counting only the distinct ones).

The product of its digits is 900, while the sum is 26.

Adding to 115331121152 its reverse (251121133511), we get a palindrome (366452254663).

The spelling of 115331121152 in words is "one hundred fifteen billion, three hundred thirty-one million, one hundred twenty-one thousand, one hundred fifty-two".